osobhandClaude Opus 5.5
b6cbd2319f
Three `chunk_info.address as usize` casts behind the `parallel` feature survived the conversion, because check-32bit-casts.sh linted only default features plus plugin-filters. On a 32-bit target with rayon a chunk address past 4 GiB still wrapped onto another part of the file. They go through addr::to_usize now, and the lane index (h % n, always < n) through saturating_usize. The script now lints no default features, default features, and every optional feature but szip (wasm32; the set with zstd, which does not build for wasm32, on the host, where the lint reports the same casts). With the old parallel_read.rs/lane_partition.rs it fails listing the four casts; the old script passed them. CHANGELOG and the design note give the exact count (119) and what is not covered. Co-Authored-By: Claude Opus 5.5 (1M context) <[email protected]>
clawhdf5-format
Pure-Rust HDF5 binary format parsing and writing — no C dependencies.
Features
- Zero-copy superblock, object header, and B-tree parsing
- Chunked dataset read/write with filter pipelines
no_stdsupport (disablestdfeature)- Optional parallel reads via Rayon
- SHA-256 provenance tracking
Usage
use clawhdf5_format::Superblock;
let data = std::fs::read("data.h5").unwrap();
let sb = Superblock::from_bytes(&data).unwrap();
println!("HDF5 version {}.{}", sb.version_major(), sb.version_minor());
License
MIT